4. A memento is a reminder.

5. A demented person has the powers of his mind impaired.

mit, mitt = send, let go.

1. ad mit, to5. per mit, through
2. com mit, with6. re mit, back
3. e mit, out7. sub mit, under
4. o mit, (ob) by8. trans mit, across

1. A ticket will admit you (let you go) to the entertainment.

2. To place in custody; to entrust with; as to commit a fund to the care of trustees; to commit (send) a prisoner to jail.

3. To send or give out; as, the fountain emits water.

4. To let go by; to neglect; to overlook; as, to omit a fact.

5. A permit will let you go through the factory.

6. To remit is to send (back) value for value received.